Design of selective emitting media within a cylindrical tube for conversion of wasted heat energy to electrical energy

The prime objective of this paper is to present the details of a thermoelectric waste heat energy recovery system for automobiles, more specifically, the surface heat available in the silencer. The key is to directly convert the surface heat energy from automotive waste heat to electrical energy using a thermoelectric generator, which is then regulated by a DC–DC Cuk converter to charge a battery using maximum power point tracking. Hence, the electrical power stored in the battery can be maximized. Also the other face of the TEG will remain cold. Hence the skin burn out accidents can be avoided. The experimental results demonstrate that the proposed system can work well under different working conditions, and is promising for automotive industry.

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Automobile based heat energy recovery systems

WEENTECH Proceedings in Energy ◽

10.32438/wpe.022021 ◽

2021 ◽

pp. 11-23

Author(s):

Om Prakash ◽

Ishan Kashyap ◽

Ayush Kumar ◽

Bharath Bhushan ◽

Anil Kumar ◽

...

Keyword(s):

Electric Vehicles ◽

Energy Recovery ◽

Fossil Fuel ◽

Electrical Energy ◽

Heat Energy ◽

World Energy ◽

Waste Energy ◽

Heat Energy Recovery ◽

Further Development ◽

State Of Art

In today's world, energy-saving and waste energy recovery are an important aspect, and it is more critical in the automotive sector. This is mainly due to vehicles are running on fossil fuel. This paper presents review on state of art waste energy recovery systems for automobiles. With further development, this system has the potential in deployment in many other industries. This technology can also be used to store electrical energy which will further be helpful in both hybrid and electric vehicles.

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Harvesting of electrical energy from wasted heat from common household stoves using thermoelectric generators (TEGs)

10.1063/1.5115942 ◽

2019 ◽

Author(s):

Md Kharshiduzzaman ◽

Adnan Ibn Hossain ◽

Aritra Rayhan ◽

Md Rubel Ahmed

Keyword(s):

Electrical Energy ◽

Thermoelectric Generators ◽

Wasted Heat

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Practical Considerations for Waveguide-Ballistic Thermal Energy Conversion

Journal of Heat Transfer ◽

10.1115/1.2818784 ◽

2008 ◽

Vol 130 (4) ◽

Cited By ~ 2

Author(s):

Michael Wieckowski ◽

Martin Margala

Keyword(s):

Finite Element Method ◽

High Frequency ◽

Electromagnetic Waves ◽

Finite Element Method Simulation ◽

Electrical Energy ◽

Heat Energy ◽

Free Electrons ◽

Thermal Energy Conversion ◽

Metal Waveguide ◽

Dc Potential

The potential of converting heat energy into electrical energy using a previously reported waveguide-ballistic device is presented. The interactions between incident electromagnetic waves and free electrons in a metal waveguide are analyzed with respect to their transport through a high-frequency ballistic rectifier using finite element method simulation. It was determined that the resulting conversion efficiency to a dc potential is approximately 6%, yielding a power density on the order of 30W∕m2.

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Influence of wind speed on the performance of photovoltaic panel

Indonesian Journal of Electrical Engineering and Computer Science ◽

10.11591/ijeecs.v15.i1.pp62-70 ◽

2019 ◽

Vol 15 (1) ◽

pp. 62

Author(s):

Leow Wai Zhe ◽

Y.M. Irwan ◽

M. Irwanto ◽

A.R. Amelia ◽

I. Safwati

Keyword(s):

Wind Speed ◽

Operating Temperature ◽

Electrical Energy ◽

Heat Energy ◽

Heat Extraction ◽

Wind Flow ◽

Photovoltaic Panel ◽

Pv Panel ◽

Output Performance ◽

Application Systems

The aim of this project is to investigate the performance of photovoltaic (PV) panel influence by wind speed in Kangar, Perlis, Malaysia. A low conversion energy efficiency of the PV panel is the major problem of a PV application system. The PV panel is absorbed solar irradiance minor converted into electrical energy, and the rest is converted into heat energy. Therefore, the heat energy generated by the PV panel is increased in its operating temperature. However, PV panel is necessary to operate them at the low operating temperatures to keep the PV panel electrical efficiency at an acceptable level. In this experiment, one unit of the PV panel was limited wind flow over its surface and the other one PV panel was operated in the normal condition. The operating temperature of the PV panel with wind speed is less than the PV panel without wind speed. This is due to wind flow over the surface of the PV panel can enhance heat extraction from the PV panel. Hence, PV panel with wind speed can generate a higher output power than that without wind speed. This improvement output performance of PV panel will have an important contribution to PV application systems.

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Metamaterial Concentrator for Thermal Energy Harvester

E3S Web of Conferences ◽

10.1051/e3sconf/202019000032 ◽

2020 ◽

Vol 190 ◽

pp. 00032

Author(s):

Rapha Nichita Kaikatui ◽

Adik Putra Andika ◽

Vinsenius Letsoin ◽

Paulus Mangera ◽

Damis Hardiantono ◽

...

Keyword(s):

Thermal Energy ◽

Communication Systems ◽

Energy Demand ◽

Electrical Potential ◽

Electrical Energy ◽

Heat Energy ◽

Small Scale ◽

Alternative Source ◽

Heating And Cooling ◽

Technological Advances

Energy demand increases in line with rapid technological advances. Research on the harvesting of renewable energy continues to be done to make efforts to convert heat energy, which is very abundant in our daily environment. Thermoelectric technology is an alternative source in answering energy needs and can produce energy on a large and small scale. Thermoelectric technology works by converting heat energy into electricity directly, or from electricity to cold. This research presents an experimental study conducted to find out the thermoelectric characteristics of the TEC in the reversal function, with heating and cooling tests on each side of the TEC type thermoelectric element, carried out to obtain the voltage value as the electrical potential generated from this element. The result is thermoelectric potential to generate DC electricity but is very limited in the function of maintaining a heat source on the hot side element. This research then proposes thermal metamaterial that functions as a collector of thermal energy in the method of converting thermal energy into DC electrical energy for the application of low power consumption communication systems.

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Cuk Converter for Waste Heat Recovery from Automobile Engine using Thermoelectric Generator with Air as Coolant

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.d1346.029420 ◽

2020 ◽

Vol 9 (4) ◽

pp. 249-252

Keyword(s):

Energy Efficiency ◽

Heat Recovery ◽

Waste Heat Recovery ◽

Thermoelectric Generator ◽

Waste Heat ◽

Combustion Engine ◽

Electrical Energy ◽

Internal Combustion ◽

Heat Energy ◽

Maximum Power

The growing concern on energy conservation and reduction of carbon footprint has led to a lot of inventions and innovations in terms of energy-efficient technologies in all the energy consuming applications. The automobile sector is a crucial zone where these technologies have a major role to play due to the sheer abundance of the number of automobiles.Many small refinements, alterations and innovations are happening in this field which has led to furthermore energy economic automobiles than before.But even in an advanced internal combustion engine, about two-thirds of fuel consumed by an automobile is discharged into the surroundings as waste heat. The effect of this is the increase in the surrounding air temperature which in turn contributes significantly to global warming. This paper proposes amethod to reduce the emission of heat from automobiles by designing and implementinga waste heat recovery system for internal combustion (IC) engines. The key aim is to reduce the amount of heat released into the environment and to convert it into useful energy. A thermoelectric generator (TEG) assembly is used to directly convert the wasted heat energy from the automobile into electrical energy. This electrical energy is conditioned using a Cukconverter and maximum power point tracking (MPPT) algorithm is embedded in the converter for impedance matching and maximum power transfer from TEG to the converter. The conditioned output is used to charge the battery of the vehicle. This methodologyalso increases the energy efficiency of the vehicle as a higher capacity battery can be employed.The proposed system can work well under varying temperature conditions to give a constant output. It can be implemented in any mechanical/ electrical systems were there is wastage of heat energy like gas pipelines, wearable electronics, space probes, cookstoves, boilers, thermal vision, etc. One of the thrust areas where this technology can be effectively utilized in today’s world is in electric vehicles where the energy efficiency is the most important factor.

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